From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
To: x86@kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: bp@alien8.de, bp@suse.de, leo.duran@amd.com,
yazen.ghannam@amd.com,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Subject: [PATCH 0/2] x86/CPU/AMD: Fix multi-die processor topology info
Date: Tue, 27 Jun 2017 01:40:51 -0500 [thread overview]
Message-ID: <1498545653-6755-1-git-send-email-suravee.suthikulpanit@amd.com> (raw)
This patch series changes how kernel derives cpu "package" from
package-as-socket to package-as-die in order to fix following issues
on AMD family17h multi-die processor platforms:
* irqbalance fails to allocating IRQs to individual CPU within the die.
* The scheduler fails to load-balance across 8 threads within a die
(e.g. running 8-thread application w/ taskset -c 0-7 ) with
the DIE schedule domain omitted due to x86_has_numa_in_package.
These issues are fixed when properly intepretes package as DIE.
This series has also been tested on existing AMD systems w/ family15h
and family10h multi-die processors.
Suravee Suthikulpanit (2):
x86/CPU/AMD: Present package as die instead of socket
x86/CPU/AMD: Use L3 Cache info from CPUID to determine LLC ID
arch/x86/kernel/cpu/amd.c | 205 ++++++++++++++++++++++++++++------------------
1 file changed, 124 insertions(+), 81 deletions(-)
--
2.7.4
next reply other threads:[~2017-06-27 6:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 6:40 Suravee Suthikulpanit [this message]
2017-06-27 6:40 ` [PATCH 1/2] x86/CPU/AMD: Present package as die instead of socket Suravee Suthikulpanit
2017-06-27 10:48 ` Borislav Petkov
2017-06-27 13:07 ` Suravee Suthikulpanit
2017-06-27 13:42 ` Borislav Petkov
2017-06-27 16:54 ` Suravee Suthikulpanit
2017-06-27 17:44 ` Borislav Petkov
2017-06-27 18:32 ` Ghannam, Yazen
2017-06-27 18:44 ` Borislav Petkov
2017-06-27 20:26 ` Suravee Suthikulpanit
2017-06-28 9:12 ` Borislav Petkov
2017-06-27 14:21 ` Thomas Gleixner
2017-06-27 14:54 ` Brice Goglin
2017-06-27 15:48 ` Duran, Leo
2017-06-27 16:11 ` Borislav Petkov
2017-06-27 16:23 ` Duran, Leo
2017-06-27 16:31 ` Borislav Petkov
2017-06-27 16:42 ` Duran, Leo
2017-06-27 16:45 ` Borislav Petkov
2017-06-27 17:04 ` Duran, Leo
2017-06-27 16:19 ` Thomas Gleixner
2017-06-27 16:34 ` Duran, Leo
2017-06-27 15:55 ` Suravee Suthikulpanit
2017-06-27 16:16 ` Borislav Petkov
2017-07-05 15:50 ` Peter Zijlstra
2017-06-27 6:40 ` [PATCH 2/2] x86/CPU/AMD: Use L3 Cache info from CPUID to determine LLC ID Suravee Suthikulpanit
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1498545653-6755-1-git-send-email-suravee.suthikulpanit@amd.com \
--to=suravee.suthikulpanit@amd.com \
--cc=bp@alien8.de \
--cc=bp@suse.de \
--cc=leo.duran@amd.com \
--cc=linux-kernel@vger.kernel.org \
--cc=stable@vger.kernel.org \
--cc=x86@kernel.org \
--cc=yazen.ghannam@amd.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®